SAN ANTONIO -- (KABB) -- Bexar County Sheriff Javier Salazar said one of his off-duty detention officers has been arrested following accusations that he repeatedly sexually assaulted a 4-year-old.

Salazar said the victim's mother reported the sexual assault Saturday night after the child made an outcry to her mom. It's believed the sexual assault had been going on for the past few months, possibly years. Sheriff Salazar said the victim's mother is an undocumented immigrant and Jose Nunez allegedly threatened her with deportation if she reported the sexual assault.